chore: migrate to vitest (#7156)

* chore: jest => vitest

* chore: replace jest-when

server/test/repositories/machine-learning.repository.mock.ts

@@ -1,9 +1,10 @@
 import { IMachineLearningRepository } from 'src/interfaces/machine-learning.interface';
+import { Mocked, vitest } from 'vitest';
 
-export const newMachineLearningRepositoryMock = (): jest.Mocked<IMachineLearningRepository> => {
+export const newMachineLearningRepositoryMock = (): Mocked<IMachineLearningRepository> => {
   return {
-    encodeImage: jest.fn(),
-    encodeText: jest.fn(),
-    detectFaces: jest.fn(),
+    encodeImage: vitest.fn(),
+    encodeText: vitest.fn(),
+    detectFaces: vitest.fn(),
   };
 };